Bidspirit auction | British Commonwealth - Saint Vincent

British Commonwealth - Saint Vincent - 1984, Locomotives, 5c-$2.50, complete set of four vertical se-tenant pairs, seven imperforated stage color proofs for each denomination, including complete design, placed in four three-page Format International Security Printers Ltd white card booklets (for each value), perfect quality items, containing altogether 28 se-tenant pair proofs, VF and rare, certificate of St. Vincent Government enclosed, Est. $300-$400, Sc. #787-90